/**
 * Copyright (c) 2025 Huawei Technologies Co., Ltd.
 * This program is free software, you can redistribute it and/or modify it under the terms and conditions of
 * CANN Open Software License Agreement Version 2.0 (the "License").
 * Please refer to the License for details. You may not use this file except in compliance with the License.
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.
 * See LICENSE in the root of the software repository for the full text of the License.
 */

#ifndef HCCL_SRC_DLHNSFUNCTION_H
#define HCCL_SRC_DLHNSFUNCTION_H

#include <functional>
#include <atomic>
#include <mutex>
#include <hccl/hccl_types.h>
#include "hccl/base.h"
#include "private_types.h"
#include "hccl_common.h"

struct WrExpRsp {
    unsigned int wqe_index;
    unsigned long db_info;
};

struct IbvPostSendExtResp {
    unsigned int wqe_index;
    unsigned long db_info;
};

struct IbvPostSendExtAddt {
    uint8_t reduce_op;
    uint8_t reduce_type;
};

namespace hccl {
class DlHnsFunction {
public:
    virtual ~DlHnsFunction();
    static DlHnsFunction &GetInstance();
    HcclResult DlHnsFunctionInit();

    std::function<int(struct ibv_qp *qp, struct ibv_send_wr *wr,
        struct ibv_send_wr **badwr, struct IbvPostSendExtAddt *extAttr,
        struct IbvPostSendExtResp *extResp)> dlHnsIbvExtPostSend;
    std::function<int(struct ibv_qp *qp, struct ibv_send_wr *wr,
        struct ibv_send_wr **badWr, struct WrExpRsp *expRsp)> dlHnsIbvExpPostSend;

private:
    void *handle_;
    std::mutex handleMutex_;
    DlHnsFunction(const DlHnsFunction&);
    DlHnsFunction &operator=(const DlHnsFunction&);
    DlHnsFunction();
    HcclResult DlHnsFunctionRoceInit();
    HcclResult DlHnsFunctionSoInit();
};
}  // namespace hccl


#endif